Background info: I've jailbroken my iPhones before, but stopped after things like FaceTime over 3g and stuff like that actually got released. Anyways, I had an iPhone 5 that was one of the ones eligible for battery replacement due to horrible battery life. I decided to jailbreak it anyway, which could have been my first mistake. Long story short, I started having issues with the phone not recognizing any chargers, then to the point where it would only charge when the phone was off. I decided to erase data and content before taking it to the apple store for a battery swap. So here is where it gets annoying. On the apple website it states to "Erase data and settings in Settings > General > Reset > Erase all Content and Settings" But on the same page of the website it also states that "If your iPhone is in working order and exhibits the symptoms noted above, use the serial number checker below to see if it is eligible for this program" So after I clicked "erase all content and settings" my phone went into a permanent loop of rebooting with no progress. iTunes would not recognize it tried DFU, different cord, different computer, even a windows computer, no luck. So i take it to genius bar today, and long story short, the guy tells me just because my serial number was eligible for battery replacement didn't mean I have a battery issue, and because my phone is not in "working order" my only choice was to buy another iPhone 5 for 300. Pretty much my phone became a paper weight. Turns out the mother board was done.. He wouldn't agree that it was a catch 22 that I was following instructions on the battery replacement page and reset the phone, which caused the reboot problem. Before that it was working, but only would charge when power was off. I know I said long story short, but anways, called apples 1800 number, and the guy talked to a senior specialist or something, and he was so helpful. He said it seemed like "i had some bad luck today" and wrote a memo for the apple store to replace the iPhone 5 for me. He even made my apple genius appointment for me. So I went back made sure it was the same "genius" and just said "I'm here to pick up my new phone" he looked confused, but eventually some other girl came and gave me a new (refurbished iPhone 5) all in all, I was getting really annoyed during the first appointment and I lost a little faith in apple, then a real apple employee really helped me out and restored my faith. As long as I get a defective phone replaced by the company that sold it to me I'm happy. But this kinda makes me think its possible to mess your phone up with jailbreaks, could it be possible the jailbreak caused the issue? Now i'm thinking I'm probably not gonna jailbreak it.. I was on iOS 8.1 and using the Yosemite with newest iTunes.. Did I brick my phone? or did apples defective battery somehow cause it? Did my phone get stuck int he infinite restore window because it was jailbroken? Is it possible for a bad battery to kill the mother board?